Robert Downey Jr. & Tobey Maguire Here We Come to Save the Day ...

6/9/2016 9:40 AM PDT

When Ironman and Spider-Man aren't suited up, they're just two regular guys hitting the town in practically matching outfits.

Robert Downey Jr. and Tobey Maguire took a stroll Wednesday afternoon in Venice, CA -- and looked to be deep in conversation ... most likely about the new "Spider-Man: Homecoming" flick that's gonna star both Marvel heroes.

Before you get too excited, someone else is playing Spider-Man in that movie.

Maybe RDJ's just trying to understand Spidey's overall motivation.